For stubborn stretch marks, I recommend applying the A-Ret gel (it contains Retinoic Acid = Tretinoin) right after dermarolling. It will sting. On top of that, apply something oily to keep the area moisturized - oil prevents evaporation of water from the skin.
If you do not achieve significant improvement with a regular roller, consider buying "tools" for more intensive treatment - a one liner dermaroller (if you have very many stretch marks) or the single needles. Yes you can roll smaller stretch marks as well with the one-liner.
We consider White Lotus Antiaging to be company of questionable ethics and their skin serums to be expensive and unproven.
More about White Lotus' unethical marketing practices here:http://www.owndoc.com/dermarolling/white-lotus-breast-enhancement-scam/
We recently got an email from White Lotus, threatening to sue us if we would not tone down our criticism of them, but they failed to explain how dermarolling could enhance breast size, or the issues addressed in that article of ours.